Adjustable delivery plate for traveling ovens



Sept. 29, 1925. 1,555,116

L. s. HARBER ADJUSTABLE DELIVERY PLAT-B FOR TRAVELING OVENS Filed Nov. 28, 1923 3 Sheets-Sheet i INVENTOR ZAmEA/cE 8741x552 AT NEYS Sept. 29, 1925. 1,555,116

L. S. HARBER "ADJUSTABLE DELIVERY PLATE FOR TRAVELING OVENS Filod Nov. 28, 1923 3 Sheets-Sheet 2 ATTORNEYS Sept. 29, 1925.

L-. s. HARBER ADJUSTABLE DELIVERY PLATE 'FOR TRAVELING OVENS Fiiod Nov. 28, 1923 3 Sheets-Sheet 3 INVENTOR ZAz/AEME 5 fl/rrwsk M ATIO EYS Patented Sept. 29, 1925:

UNITED STATES PATENT OFFICE.

LAURENCE S. HARI BER, OF WHITE PLAINS, NEW YORK, ASSIGNOR 'I'O BAKER-PER KINQ COMPANY, INC., O'F WHITE PLAINS, NEW YORK.

ADJUSTABLE DELIVERY PLATE Eon TRAVELING OVENS.

Application filed November 28, 1923. Serial No. 877,461.

To all whom it may concern:

Be it known that I, LAURENCE S. HA1unm, a subject of Great Britain, residing at White Plains, county of Westchestcr, State of New York, have invented a certain new and 'useful Improvement in Adjustable Delivery Plates for Traveling Ovens, of which the following is a clear, full, and exact description.

This invention relates to bakers ovens, and more particularly to ovens of the type known in the art as traveling ovens.

In ovens .of the traveling type, the baking chamber consists of an elongated housing constructed to insulate the same against the rapid transmission of heat, and a series of baking plates mounted on an endless conveyor arranged to pass from one-end of the oven: to the; other to cary the material therethrough. The oven is provided with openings at its opposite ends, through one of which the material is fed and from the other I of which the material'is delivered at the end ment of the conveyor after it is completelyof the baking operation. At the, delivery end of the oven is located a plate or platform upon which the baked material is dc-' posited from the baking plates by the movebaked. Toprevent the pans or baked articles from becoming caught between the bakingp lates and the delivery plate, as they are delivered from the oven, the delivery plate has been pivotally'mounted and controlled so that the edge of the delivery plate adjacent the baking plates is maintained at substantially the same distance from the baking plates at all times during the movement: of the baking plates about the sprockets at the delivery end oftheoven about which sprockets the conveyor passes.

In baking the diflerent kinds of material it is desirable that the delivery. plate should be located at different angles withrelation to the horizontal. For example, 'in baking bread, or other material in pans, it is desirable that the delivery plate should be adjusted so that it makes relatively small angle with a horizontal plane. This allows'each pan to slide easily down the plate under the force of the next pan as the latter is delivered onto the plate by the conveyor. When rolls are. being baked without pans it is desirable that the delivery plate should be lo cated at a greater angle to a horizontal plane so that the rolls will roll down the plate produce an oven having a delivery plate which will be actuated so that its edge adj acent the baking plates will always be maintained'at the same distance from the plates and which may be adjusted to vary the angle thereof as desired.

With this obj set in view the invention comprises the novel and improved features, constructions and combinations of parts hereinafter described and particularly pointed out in the claims, the advantages of which will be readily understood and appreciated by those skilled in the art.

The invention will be clearly understood from the accompanying drawings illustrating the invention in its preferred form and the following detailed description of the construction therein shown.

In the drawings, Fig. 1 is a view in vertical section of the delivery end of a traveling oven embodying the present invention;

Fig. 2 is aview in end elevation partly broken away of the delivery endof the oven;

Fig. 3 is a plan view partly broken away of thedelivery end of the oven;

Fig. 4 is a view similar to Fig. 1, illustrating a modified form of the invention; and

Fig. 5 is a View in end elevation of a portion of the delivery end of the oven having the construction shown in Fig. 4.

In the form. of the invention illustrated in elongated baking chamber indicate at 4.-

through which travel a series of baking plates indicated at 6, mounted on an endless conveyor. This conveyor comprises two con-- veyor chain structures, one at each end of the series of baking plates, to which the'ends of the plates are respectively attached. The conveyor chains each comprise a series of links 8, pivotally connected by means of pins or rods 10 and a series of guide rollers 12 rotatably mounted upon the pins. The inner link 8 ofthe opposed conveyor chains at opdeposited upo secured.

of the machine are connected by posite sides plates to which said links are the baking The conveyor chains pass about sprocket wheels mounted upon shafts at the OPPOSItQ" ends. of the oven, these sprocket wheels having recesses to receive the guide rollers 12.

The sprocket wheels at the delivery end of the machine, one of which is indicated at 16, are mounted upon the shaft 18 journalled in bearings at the opposite sides of the oven.

In the present embodiment of the invention the oven is provided with a delivery plate indicated at 20, the inner edge of which is located adjacent to the baking plates as these plates pass about the sprocket wheels 18, so that the baked material 18 n the delivery plate by the To enable the inner edge of the delivery plate to be maintained at the same distance from the surfaces of the baking plates as they pass this edge, of the delivery plate during their movement about the sprocket wheels, the delivery plate is mounted upon supporting brackets 22, pivotally supported at 24 on the frame of the machine. The pivotal position of the delivery plate is controlled by means of a pair of arms 26 secured to opposite ends of the delivery plate and projecting over the delivery end of the traveling conveyor, these arms being arranged to engage the guide rollers 12 in the manner clearly shown in Fig. 1. The contact faces of the arm 26 are curved as illustrated in this figure, so that as the guide rollers turn about the axis of the sprocket wheel 16, the delivery plate will be swung about its axis 24 to maintain the inner edge of the plate always at the baking plate.

same distance from the adjacent surface of partof the delivery plate is formed by one part'of an angle iron 28 which is pivoted at 30 to the body of the delivery plate. Tothe angle iron 28 is secured bracket 32 to which is connected one end of the coiled spring 34,, the other end of which is connected with the body of the delivery plate, This coiled spring normally maintains the angle iron 28 in the position shown in the drawings, the pivotal movement of the said iron about its pivot '30 being limited by the contact of the bracket 32 with the body of the delivery plate.

As stated above, the delivery plate is adjustable angularly to enable the same to operate in an efficient manner in delivering different kinds of material received from the baking plates. To enable the angular adjustment of the delivery plate to be readily effected, the pivotal point or axis 24 of the delivery plate is arranged for vertical In the construction shown in the draw- I ing, the brackets 22 supporting the delivery plate are pivoted upon a shaft 36, the ends of which extend outwardly beyond the brackets and are arranged to engage guides 38 formed on the frame of the machine. The shaft 36 is supported by means of chains 40 each of which has one end connected with the shaft 36, and passes about a wheel 42 attached to a rotatable shaft 44, the other end of the chain being secured to said wheel. The shaft 44 carries at one end a worm wheel 46 meshing with a worm 48 mounted on a shaft 50 extending upwardly above the delivery plate, the upper end of which carries an end wheel 52, by means of which it may be rotated manually. By rotating the hand wheel 52, the shaft 44 is rotated through the connections described to wind up or unwind the chains 40 and thereby adjust the shaft 36 along the guide 38. The inner guiding surfaces of the guides 38 are arcuate in shape, these surfaces conforming to arcs struck from the axis of theshaft 18 as centers.

In the modified form of the invention shown in Figs. 4 and 5, the oven and conveyor structure and the construction and arrangement of the delivery plate and of the mechanism for swinging the plate to maintain the inner edge of the same at substantially the same distance from the baking plates are all substantially as shown in Figs. 1, 2 and 3, the corresponding parts being indicated by the same reference numerals in Figs. 4 and 5. In the construction shown in Figs. 4 and 5, however, the delivery plate is. supported on brackets 54, which carry at their lower ends a cross plate 56, the lower edge of which is received in one of the notches 58 and 60, formed in the supporting plates 62. The supporting plates 2 with the notch in the supporting plates 62.

3. A traveling oven having in combina- Notches 58 and 60 are cut in the supporting tion a baking chamber having feed and deangle thereof.

plates 62 so that the bottoms of the notches livery openings; an endless conveyor arare located at substantially the same disranged for movement through said chamtance from the axis of the shaft 18. Thus her; a sprocket wheel at the delivery end the shifting of the plate 56 from one notch of the oven over which the conveyor runs;

to the other will not produce any variation a corresponding sprocket wheel at the rein the distance of the inner ed e of the de-. ceiving end of the oven; a series of baking livery plate from the baking p ates. Since plates carried by said conveyor; a pivoted in both of the constructions shown inthe Y delive plate having its inner edge located drawings of this application the adjustment in osltion ,to receive .material from the of the delivery plate to vary the angle therebaking plates at the delivery end of the of takes place about the axis about which conveyor; means for causing movement of the delivery end of the conveyor turns, the the delivery plate to cause the edge thereof adjustment of the "delivery plate will proadjacent the baking platesto assume posiduce substantially no variation in the cotions always at the same distance from said operative action of the rollers 12 and the plates during the movement thereof past the arm 26 in swinging the delivery plate about delivery plate about said sprocket wheel; its axis. The delivery plate will,-therefo1p, and means whereby the pivot of the delivery have the same mode of operation regardless plate may be adjusted about the axis of-said of its adjusted position. first sprocket wheel to vary the angle of It is to be understood that the invention said plate. a is not limited to the particular construction 4. A traveling oven having in vcombinaand arrangement vof parts of the illustrated tion a baking chamber having feed-and deembodiment of the invention, but that the livery openings; an endless conveyor arinvention may be embodied in other forms ranged for movement through said chamwithin the scope of the claims. her; a sprocket wheel at the delivery end Having explained the nature and object of the oven over which the conveyor passes; of the invention and having specifically dea corresponding sprocket wheel at the rescribed the machine embodying the invenceiving end of the oven; a series of bakin tion in its preferred form, what is claimed plates carried by said conveyor; a pivo is: delivery plate having its'inner ed e located 1. A. traveling oven having in combinain osition to receive material om the tion a baking chamber having feed and debaking plates at the delivery end of the conlivery openings; an endless conveyor arveyor; means for causing movement of the range for the movement through saidchamdelivery plate to causethe edge thereof adber; a'series of baking plates carried by said jacent' the baking plates to assume positions conveyor; a pivoted delivery plate having always at the same distance from said plates its inner edge located in position to receive during 'the movement thereof past the dematerial from the baking plates at the de-, livery plate about said sprocket wheel, and livery end of the conveyor; means for causmeans for adjusting the pivot of the delivery ing movement of the delivery plateto cause plate about the center of said first sprocket the edge thereof adjacent the baking plates wheel to vary the angle of said plate.

to assume positions always at substantially 5. A traveling oven having in combination the same distance from'sa-id plates during 'a baking chamber having feed and delivery the movement thereof past the delivery openings; an endless conveyor arranged for plate; and means for adjusting thepivotal movement through said chamber; a sprocket point of said plate to vary the angle thereof. wheel at'the delivery end of the oven over 2. A traveling oven havingin combinawhich the conveyor runs; a corresponding tion a baking chamber having feed and desprocket wheel at the receiving end of the livery openings; an endless conveyor aroven; a pivoted delivery plate having its ranged for movement through said chaininner edge located in position to receiveber; a series of baking plates'carried by said material from the baking plates at the deconveyor; a pivoted delivery plate having livery end of the conveyor, a projecting arm its inner edge located in position to receive on t e plate, and means on the conveyor material from the baking plates at its defor engaging said arm to swing the livery end of the conveyor; :means for causdelivery plate about its axis. to cause the ing movement of the delivery plate to cause edge thereof adjacent the baking plates to the edge thereof adjacent the baking plates maintain, substantially the same [position to assume positions always at substantially with relation to the plates during the movethe same distance from said plates during ment of the conveyor about the sprocket the movement thereof past the delivery wheel past the delivery plate at the delivery plate; and means whereby the pivotal point end of thejconveyor, and means whereby of said platemay be adjusted to vary the no variation in the distance oi the inner edge of the delivery plate from the baking plates.

6. A traveling oven having in combination a baking'chamber having feed and delivery openings; an endless conveyor arranged for movement through said chamber; a series of baking plates carried b said conveyor; a pivoted delivery plate, aving its inner edge located in position to receive material from the baking plates at the delivery end of the conve or; means for causing movement of the elivery plate to cause the edge thereof adjacent the baking plate to assume positions always 'at substantially the same distance from said plates during the movement thereof past the delivery plate, and means for supporting and adjusting angularly the delivery plate comprising chains upon which the pivot of the delivery plate is supported; guides for guiding the pivot of said plates during the adjustment thereof and means for taking up and letting off the chains. a

7. A traveling oven having in combination a baking chamber having feed and delivery openings, an endless conveyor arranged for movement through said chamber, a series of baking plates carried by said conveyor,

a delivery plate having its inner edge located.

* 1n position to receive material from the baking plates at the delivery end of the conveyor, means for causin movement of the delivery plate to cause the edge thereof adjacent the baking plates to assume positions always at the same distance from said plates during the movement thereof past the delivery plate, and means whereby the delivery plate may be adjusted tovary the angle thereof.

'8. A traveling oven having in combination a baking chamber having feed and delivery' openings, an endless conve or arranged'for movement through said 0 amber, a seriesof baking lates carried by said conveyor, a delivery p ate having its inner edge located in position to receive material from the baking plates at the delivery end of the conveyor, means for causing movement of the delivery plate to cause theedge, thereofadjacent the baking plates to assume positions always at substantially the same distance from said plates during the movement thereof past the delivery plate, and means whereby the angle of the delivery plate may be varied withoutvarying the cooperative action of the baking plates and delivery plate.

9. A travelin oven having in combination a baking cham er, an endless conveyor arranged for movement through said chamber, a series of baking plates carried by said conveyor, a delivery plate having a yielding edge portion arranged to receive material from said baking plates, and means for moving the delivery plate to maintain said edge portion am substantially uniform distance from the baking plates as said plates are carried about the delivery end of the conveyor.

tion a baking chamber, a series of bakinglates arranged to travel through said cham-,

er, and a delivery plate for receiving material from said baking plates having its edge portion adjacent the baking plates mounted to yield in the direction of movement of the baking plates.

12. A traveling oven having in combination a baking chamber, a series of baking plates arrangedfor movement through said chamber, a elivery plate for receiving material from said baking plates having its .edge portion adjacent the baking plates pivoted toyield in the direction of movement of said baking" plates, a spring for holding said edge portion substantially in the plane of the body of the delivery plate, and a stop for limiting the movement of said edge portion under the action of the .spring.

Signed at New York city, New York this 21st day of November, 1923.

LAURENCE S. HARBER 

